Ankylosing Spondyloarthritis is a type of arthritis that mainly affects the spine.  What is the Pathology of Ankylosing Spondyloarthritis? The pathology of ankylosing spondyloarthritis is: -Etiology: The cause of ankylosing spondyloarthritis is unknown.  -Genes involved: HLA-B27. -Pathogenesis: The sequence of…